I want to be friends with benefits with him... but he recently got a girlfriend.
I'm the January one (girl) he is November.
I'm curious if anything will happen between us soon.
If you want to have a relationship with him, don't start it as FWB.
I don't think it would be easy to have a solid relationship with him if it starts that way. He has Cancer on his 7th house of relationships. So he needs to feel a real emotional connection with someone before he enters a relationship. His Moon, the ruler of his 7th, is in Aries in the 3rd. He likes the thrill of the chase. He wants it to be a challenge.
Being in a FWB relationship can inhibit that process because it outs the 8th house energy before the 7th house of relating and forming a partnership.
His Venus, which describes what kind of women he is attracted to, is @ 0 Scorpio in the 9th of foreign cultures and higher education. Cultivate your intellectual studies with him. Study languages together or talk about travel and diverse cultures and religions.
Make him interested in your intellect and your enthusiasm for life and the future. That will turn him on more than offering him FWB, in my opinion.