Sam Smith wants to have children ''so bad''.

The 25-year-old singer has admitted his ''life plan'' is to become a father, partly because it would ensure he wouldn't be ''selfish'' ever again because he would have someone else to look out for.

When asked if he wants to start a family at some point, he said: ''Massively, yeah, it's like, my life plan. I want kids so bad. I just feel like it's nature's way of reminding you that it's not about you. It makes you not selfish.''

Sam also admitted he is considering adopting a child and having a kid via a surrogate one day.

He added to The Sun newspaper: ''I think I might do both. When I went to Iraq to the camps, it made me want to adopt.''

As well as wanting kids one day, Sam recently admitted he would love to be able to have orgasms at the ''click of his fingers''.

Speaking about three things he'd love to be able to have in his life, he said: ''To be able to give yourself orgasms whenever you want. Like, to be able to click your fingers and you feel an orgasm, without any of the work.''

The 'Stay With Me' hitmaker would also love for his family to be ''happy'' until they pass on, and admitted he would enjoy being able to consume cheese without putting on additional pounds.

He added: ''Number one: for my family and friends to be happy until the day they die, and that they live a long life. Number two: to be able to eat cheese and not put on weight.''

Despite his love of cheese, Sam is in fact a huge pizza hater, although he has been known to chow down on the fish varieties.

When asked what his favourite pizza topping is, he previously admitted: ''I don't like pizza. It's really weird, I know. The only pizza I like has seafood on it, like tuna.''