This is a weird one for me. To me, you just do it when/if you think it's right. I'm a guy & although I've taken many girls out in the past I've only ever slept with 2 people - one was a LTR & the other was a one night stand, something which I do regret. Someone can steal your wallet, watch, insult you, try to belittle you, but intimacy is the one thing that remains personal to you & I think it has to be special to share it. Just my opinion.