Is it a good idea to have with my ex-boyfriend?

He is my my 10 year old daughter's dad. I used to be in love with him deeply, but we broke up. Our break up was long (3yrs) and filled with a lot of heartache for me. Since then I have barely dated, yet he has had several girlfriends and other kids too. I am thankful for our break up as he does not have any goals and pays too much in child support to help take care of me if I may add. Anyway, he's been flirting with me lately and want to have . I am horny and the quality of guys that I have been messing with lately are not better than he is. I don't want to take him back, but I just want a good roll in the hay because he is an excellent lover. I have not had with him since 2004.