Chrissy Teigen "can't wait" to see John Legend use Viagra when he gets older.
The 28-year-old model is looking forward to growing old with the 'All of Me' hitmaker, whom she married last year following 10 years of dating, and is even thinking about how they might require the help of the erectile dysfunction treatment to boost their sex life.
Speaking to Us Weekly magazine about how her life has changed since tying the knot, she said: "I think you are just more comfortable talking about the future more. I was the kind of girl that never talked about marriage and kids ... [Now] you just end up talking about everything as forever which is very cool.
"It's nice to be able to be like, 'I can't wait to see you with grey hair, it's going to be hysterical.' Or, 'I can't wait until you have to use Viagra.' "
Meanwhile, the brunette beauty is planning to have "a lot" of children with the 35-year-old singer but admits their conflicting work schedules make it impossible for them to start trying for a baby at the moment.
She explained: "I want a huge family. We want a lot of kids. When it happens, it happens. For us it's hard because he's on the road so much and I'm working.
"People think it happens so easily ... but the stars really have to align to have a baby and it is a little miracle so when it happens ... we will be so happy."

John Cusack thinks being a child star is "brutal".
The 'High Fidelity' actor - who appeared in his first film 'Class' aged 16 - believes finding fame at a young age can be a "damaging" experience and feels he's had a lucky escape.
When asked how he felt about the treatment of child stars, he told Shortlist magazine: "Yeah, its brutal. I got into films [at the age] where it can do a lot of damage - 16. I started with people who got damaged.
"But it's different now. It's much worse than it was. Back then, there was an expectation of private life. There were areas you could go and make mistakes [without public attention] because what else were you going to do between the ages of 16 and 25 but make mistakes."
The 48-year-old actor's latest film 'Maps To The Stars' is due out next week and has been described as an extension of "obscene and crazy" Hollywood life, although he insists the movie is "tame" in comparison to the difficulties facing young stars.
He explained to Shortlist magazine: "Here we are in Toronto at the Toronto International Film Festival, and there's a TV channel doing live 'breaking news' coverage that is tracking - in real time - Justin Bieber's movements into a mall. This movie is tame in comparison."

Thom Evans is dating his 'Strictly Come Dancing' partner.
The former professional rugby player - who has previously dated Kelly Brook and American actress Jessica Lowndes - is said to be "completely smitten" with dancer Iveta Lukosiute.
A source told The Sun newspaper: "He is completely smitten. We didn't think Iveta would be his type but he had a huge crush on her from the get-go.
"He's joked that he used to be a boobs man but Iveta has turned him into a legs and bum man in weeks."
According to reports, the couple have "been spending almost every minute" together even after rehearsals, and Thom is keen for her to meet his family.
The insider added: "The pair have been spending almost every minute with each other in the build-up to the live shows and are often still together after rehearsals.
"They've been sneaking off for dinner dates in Surrey pubs and Thom took her to the Weybridge Health Club and Spa. He said she is meeting his family."
The former sportsman was excited when he announced he would be appearing on the show.
He previously said: "I am so happy to be doing the show, I cannot wait to get started.
"I'm really looking forward to my Strictly makeover - bring on Strictly and bring on the spandex."

George Clooney left the 'Downton Abbey' cast starstruck when he appeared to film secret scenes.
The Hollywood actor is set to appear in the period drama's Christmas special in December, and his arrival on the set left the show's stars "falling about themselves with excitement".
An insider told The Sun newspaper: "The cast were falling about themselves with excitement and lining up to have their photos taken with George.
"The girls were mad keen to speak to him. He was full of jokes and had them all in stitches.
"'Downton' is now a global phenomenon and they are used to red carpet events with Hollywood A-listers. But this was George acting alongside them."
Laura Carmichael - who plays Lady Edith Crawley on the hugely popular ITV show - admitted George's appearance on the show was such a secret that the cast "didn't know if it would actually happen" until he arrived on set.
She said: "It was amazing. We didn't know if it would actually happen until he turned up.
"We were filming and then heard, 'He's here! He's here! He's arrived!' "
Meanwhile, it was recently revealed reality TV star Kim Kardashian West is also keen on a role.
She admitted: "I'm a big fan. I'd love to be on it if they asked. I love things like that."

Pixie Lott is hoping to avoid any wardrobe malfunctions on 'Stricty Come Dancing'.
The 23-year-old pop star has admitted the celebrity dance contest is a new experience for her, and joked she was worried about potential "nip slips" due to her revealing outfit.
She told the Daily Mirror newspaper's We Love TV magazine: "This is a whole different thing for me.
"My outfit is quite low-cut. I hope there are no 'nip slips.' "
The 'Mama Do' hitmaker is managing to strike a balance between her music career and 'Strictly' commitments, and she has had her professional dance partner Trent Whiddon training her in spare time between live concerts.
She recently said: "At the moment, I'm performing around the country so Trent is travelling with me so we can fit in some training.
"I'm dreading serious dances such as the tango. I'm looking forward to fun dances like the salsa."
She has also dismissed rumours of a rivalry between the female stars on this year's show.
She previously insisted: "Me and the other Strictly celeb girls have set up our own WhatsApp chat group and we send each other selfies of us in training, as well as just having a gossip.
"It's been really nice."

Gwen Stefani feels like she can do it all.
The 44-year-old star, who has sons Kingston, eight, Zuma, six, and Apollo, seven months, with husband Gavin Rossdale, admits it's not easy juggling motherhood with 'The Voice' USA and her career as a fashion designer, but insists she wouldn't change a thing.
She said: "It's an amazing time in my life. I get to be doing it all.
"It's really hard, but I've always liked the clash of things. You get to be in one world, and the next minute you're in another world."
The blonde beauty admits she was forced to take a break when she got pregnant for the third time.
She said: "It was really hard for me to do much else, so I kind of had to walk away."
But the No Doubt singer is thrilled to have recently returned to New York Fashion Week to present her latest collection.
She told People magazine: "It reflects where I am right now, everything kind of aligned.
"I really enjoy the process of making the clothes, almost as much as I do wearing them."
And Gwen is now gearing up to release her new fragrance collection.
She said: "I'm doing new Harajuku Lovers fragrances that I've been working on forever. They reflect where I am right now, which is totally surreal because I worked on them so long ago, and it all coincides win a weird unplanned way. I love when the happens."

Jesy Nelson is dating Rixton's Jake Roche.
The Little Mix pop star is reportedly getting close to the actor and singer over the last few weeks, and it is said they are keen to make the relationship work.
A source told The Sun newspaper: "It's early days but Jesy and Jake seem smitten with each other. They're seeing how things go.
"They're both always busy with work so they know it will be hard, but both of them want to make it work.
"They're very similar to each other and like a laugh so are well suited."
Meanwhile, Jesy and her bandmate Jade Thirlwall both recently split from their boyfriends - Diversity members Jordan Banjo and Sam Craske respectively - due to "conflicting schedules".
An insider said: "While it's strange timing and quite a coincidence that both girls were dating boys in the same dance troupe, it seems to have stemmed from the amount of time they are able to spend together, because of their conflicting schedules.
"The girls are about to go on a huge US tour, which will see them spend the entire rest of the summer apart.
"That's tough for any relationship, but especially when the girls are still so young."

Mel B's "obsession with sex" has reportedly driven friends and family away.
The former Spice Girl is said to have clashed with those closest to her due to her relationship with Stephen Belafonte, with Victoria Beckham put off by their raunchy behaviour.
An insider told The Sun newspaper: "Mel and Stephen are obsessed with sex. It's all they seem to talk about and they are at it whenever they have a free moment.
"It can be uncomfortable to be around. Mel is just as up-front as her crude stereotype suggests. She seems to constantly talk about her sex life and ask you about yours.
"Some people just can't handle being around her. Her and Victoria Beckham do not get on at all."
Meanwhile, Mel recently admitted Geri Halliwell's departure from the Spice Girls hurt the longevity of the iconic pop group.
She said: "When Geri left the group, it was bad. She left on my birthday, and didn't tell anybody... Just didn't show up.
"We had the rest of the ['Spiceworld'] tour. The American part of the tour...
"We had a five-year plan that got shortened after three years."

Nadine Coyle says Cheryl Fernandez-Versini didn't tell her about her wedding.
The former Girl Aloud singer - who has six-month-old daughter Anaiya with her fiance Jason Bell - has admitted neither of the ex-bandmates shared their respective good news with each other.
She told the Daily Mail Weekend magazine: "I suppose Cheryl heard about the baby like everyone else.
"She sent a congratulations email. 'It's amazing you're going to be a mummy ...', that sort of stuff. She didn't tell me about her wedding.
The star insisted that despite finding out about Cheryl's surprise marriage to Jean-Bernard Fernandez-Versini in July from a friend, the pair don't "hate each other".
She added: "I heard from one of my best friends who came to LA from the UK.
"He said, 'Cheryl got married. Did you see?' He had an English newspaper with him and I thought, 'God, no way!'
"It doesn't mean we hate each other. It means life moves on."
Meanwhile, Nadine recently insisted "it's great" that Cheryl has found happiness and tied the knot.
She said: "It's great every time somebody gets married and you're all swept away in emotion, so I think it's great."

Dame Judi Dench won't be attending the Oscars next year.
The 79-year-old actress - who was nominated for Best Actress this year but missed the ceremony because of filming commitments - insists she "loves" the Academy Awards but isn't planning to be in the audience for the 2015 ceremony.
She said: "No, I don't think I'll attend. I don't imagine so.
"I mean I love them but I never like to speculate on these things."
For the next few months, Judi will be filming a BBC adaptation of 'Richard III' opposite Benedict Cumberbatch and she can't wait to work with the "true gentleman", who she has known since he was just a child.
She explained to the Daily Telegraph newspaper: "I knew him when he was a little boy at prep school before he went on to Harrow.
"His mother, Wanda Ventham, was at the Royal Central School of Drama a year ahead of me.
"He is a true gentleman and a thoroughly good actor, which helps. We start on Monday and it's a huge project, six months in filming."

Jerry Hall used to give her daughters catwalking lessons when they were children.
The Texan supermodel used to entertain her kids and their friends - which, for 20-year-old Georgia May Jagger, included Suki Waterhouse - by showing off her modelling poses when she had had a few glasses of wine.
Georgia said: "After a couple of glasses of wine, my mum would start teaching us how to catwalk in the living room.
"But it would be completely 1980s style with three twirls and a big pose at the end.
"Shows are so boring now, but at the same time I wouldn't know how to be like Mum was with all the theatrics. I'd give it a go though."
Georgia can't believe how far she, Suki and their other friend Cara Delevingne have come in the last few years.
She added to Britain's Grazia magazine: "It's crazy. I've known Suki since I was 11. We were in Year 7 together and then school all the way until we were 16. I didn't meet Cara until later, but we became friends immediately.
"The last three years have been mental - we went from being together at Glastonbury and now they're in movies."

Nicki Minaj hates going out.
The 'Super Bass' singer admits she is different to other stars because of her low-key lifestyle but she prefers staying at home cooking food and watching her favourite TV shows to going to parties.
She said: "I'm in a surreal world, but I'm so normal in it.
"Most people that I know in the industry have maids, housekeepers, 10 bodyguards and a masseuse with them at all times. Everyone around me is like, 'You're so much more low-key than I thought.'
"But I don't like going out, i don't like crowds, I don't like clubs. If I do have downtime, I prefer being in the house cooking West Indian food and watching my DVR."
The 31-year-old rapper - who was born in Trinidad and moved to Jamaica when she was five years old - thinks she has always been "brave" and has never been afraid to stand up for herself.
She told Dazed and Confused magazine: "I've always been brave. [My mother] made me feel like I could do anything.
"I can always remember standing up to the baddest girls in elementary school. Wherever I went, there was always a mean girl and that girl would always hate me because I wouldn't bow down."