I want to have sex with this boy and start a relationship but i dont

Seduce him as much as possible. Believe me, he will be yours.....

Maybe go for a swim and shit in his tea.

Put your butt against him

I don't know if he still loves me but he likes to flirt

I know it's scary and hard but you should just ask him. Otherwise you are just going to torment yourself and eventually someone else will make the move. Personally, I think its better to regret something you have done than to regret something you haven't. Tell him, he says no, boom done. He might say yes. Does he spend a lot of time with you? Do you talk a lot? Does he smile at you? You ever catch him checking you out? If he does any of that he likes you. Does he flirt at all? If you can't bring yourself to use the direct approach then start flirting with him.

Have you seen his naked cock and nuts yet ?
How old are you ?
Have you ever seen any guy's naked cock and balls yet ?

He spends lodes of time with me we have had sex but that's when I was 17 so x