Did B & N only have sex once?

though its definete they did it atleast once in season 1, i think they did it more in season 2 when they became a couple again

I don't think so! I think they had it more when they reunited in season 2.

I think the ony time that B & N have had sex was in season 1 and maybe in season 2 but we know that they definitely did in season 1.

I'm pretty sure they had sex in both seasons. In season one they obviously did it and Hi Society! and it was implied that at the end of School Lies they had sex again. I'm pretty sure they had sex in season two, but we were never given a definate answer.