I was texting my best guy friend and he mentioned we never did anything sexual cuz his friend liked me and he was respecting that. So I pushed the issue he said "let's leave it" and then I teased him saying oh was he gonna discipline me if I didn't and he said "with the whip cream"? I said " handcufs" and he said he was hard now so we had to stop because he couldn't do anything. Is that normal for a guy to get hard texting like this with a girl? Or if not what could it mean?