Acts with wife in Islam

sir one of my friend is newly converter he wants to ask that before accepting islam he and his wife used to have sex in diferent ways. Such as kissing/etc private parts from both husband and wife.

now he wants to ask is that also alloud in islam if yes then to what extant like if it is aloud to kiss nipples or kissing of penis by wife and kissing of vagina of wife.please give the answer and make us wise on this subject.thanks"

Web Admin: Message edited in order to keep language clean. The meaning of the question is still the same.