a friend of mine once refers to it as testing ground....... but i tell you it is a sin to some people
Nevertheless how many prophets in the bible waited till after marriage before having sex? David? Solomon? Moses?Abraham?Judah?Noah?Saul now Paul before being coverted?Etc All of them enjoyed themselves and they still enter the kingdom of God. Proverb 5 verse 18-20 says we should enjoy the Bosom  of the wife of our youth and that we should be satisfied with her love, but we should make sure it only ours and not from another man cristern......... so my dear bro/sis in the lord enjoy your self with your boy friend/girl friend.. it is the lord's doing and its mavelous in our sight....halleluyah