This is weird ^_^?

me and my guy friend ( whom i dont know personally, he is one of my best guy friends friends lol ) were talking on aim... and before thiss when i first taked to him him i joked that'd id get his name tattoed on my ( i was only kidding, and i know its weird but whatever lol) and now he wont stop talking about it... last night he keeps saying can i touch your ? can i touch your ? i said no.. and he goes come on!!! and today hes like can we please have a perverted convo plsss. and i said um no y? and he keeps begging me..this is getting weird.. what should i do? i dont want him to tell my guy friend that im no fun or anything. but.. its gross. i dont wanna talk about this anymore!!!