Thanks every one for the replies, you've no idea how much they've helped me.

I'm going to take your suggestions and just politely say no it's inappropriate. I know it seems like common sense but it's hard to think rationally when you have so much anxious thoughts swimming about.

After that I'll decide on the next step depending on how he reacts. If he's Ok with it or appologises Ill just say lets forget about it, even though I do find it quite insulting tbh lol but I'll get over it.

If he still pushes it I'll just have to be firm and maybe a bit harsh and just say that Im not attracted to him and find his behaviour quite disgusting. Hopefully it wont come to that though.

I'm 22 years old for those who are intereted I probably come across a bit younger because I'm really antisocial and havn't been in a situation like this. I'm not sure how old he is exactly but his eldest son is 20 so he must be around late 30's early 40's.

Thanks everyone again