How soon is soon 2 sleep with some1? we like eachotherm but its getting hotter and sweeter by the minute?

i like this guy n he likes me, we've been talking for about weeks now and we have only seen eachother twice or times and yesterday he came over my house and we were laying down together cuddling and we actually kissed for the first time and oh my god, it was soo cute, but i still have feelings ofr my ex and i tell this guy all about it, he understands but says he' not willing to share me and im starting to think about both of them, i think my ex moved on, on me and i think thats whats helping me kinda talk to this new guy, but there is definitely an attraction there between us, and i want to do it with him badly to see how's he in bed but i have alot of things going on and he does too, and im not an easy girl either, im almost 20 and i can say im starting to be more open as the years start to roll by, please give me some good advice, atleast i want to do a couple of things to tease him and drive him crazy....but not ....i refuse to..