coz cheating makes the sex more exciting.. it's illicit, it's exciting..
But not advisable coz u'll never know where ur cheating partner had been.. u can end up alone AND infected.
Cheat..after marry? no.. not for me...used to have a thought of cheating but after experiencing of havin a cheating dad.. everything went bad and all suffered hence i wont let things happen again as children are the most who are buried into the whole problems n debts... if u want... do ur careful selection..u may do selection.. observe well, do whatever u want with gf and once u decide to settle down... dont ever cheat after u marry...Once U cheat onto ur family... its like u r diggin a hole for urself and building a Hell on earth for urself n dragging ur family along.