long-term: emotionally it can be destructive.
-----i know this from 2nd-hand experance. what i mean is i didn't do it, but someone i know has done it and her emotions from the experance is prohibiting her from compleatly falling in love with another person. she tells me about how it drives her crazy because she wants to get away from the thoughts so she can fall in love again and she cant.
[QUOTE=Brynn]And another question about that: what if someone gets married at the age of 30? Do you think he/she should wait with sex until then?[/QUOTE]
yes, he/she should wait (in my oppinion) till he/she is married for a sexual encounter with another person.