Describe getting away with it. Legally or emotionally? Young girls are stupid and clingy as fuck. The younger they get (I'm 21, youngest I did was 17) the more they wanna blow your fb inbox and your phone up. 16 - if she looked hot enough to pipe once, and never come in contact with her again 18 - and out of high school is the lowest I'll go to be causally piping. But I usually date chicks 3 years older than me, they know the biz.