HELp ASAP

I met a guy 😩😩 I’m 16 and he’s 20 (is that ok?), we’ve been speaking for four days and last night we met up, he picked me up went went for a walk and some food and we really got along! (I was shaking I was so scared to meet him😩) so anyway he was super full on like wanting kisses and cuddles straight away.. I didn’t mind because he was so cute but I’m shy ☺️ he parked up and we were kissing in his car 🙈 it was SUPER hot and I’ve not stopped thinking about him😩 he says I drive him crazy... we’re going to the cinema tonight and he asked me to stay over Friday 😅would it be bad if I had sex with him? Is it too soon? Is he too old? I need advice ASAP xx

EDIT: we are both legal in my country ! :)