Seeking wrote:This is very helpful stuff, thanks to all those who commented.
I think when you're young and relationships are that bit more neurotic, at least in the first couple of months, I'd certainly wait until you felt you'd reached an appropriate juncture in the relationship - there are so many things later on in relationships, whether it's funny habits that surface or whatever, that would be dealbreakers at the start but which are insignificant once you know someone. I certainly think I'd wait, not too long, but I certainly wouldn't be giving my science lecture on the first night together.
I agree with you. There's no need to try and give a science lesson the first night you're having sex. Give it a few months, if the relationship is going somewhere then it would be a good idea to let your partner know.
Otherwise, there's no reason to tell them.
It looks and feels like the real thing, other than the pump in the scrotum there's no way she could tell there's anything different.