How to friendzone a hookup?

I met this guy at a party last semester and we really hit it off! we hung out a few times and ended up having sex twice... unfortunatly the sex was terrible and his pen15 was ridiculously small... it makes me really sad to say but it kinda ruined the possibility of anything else happening with this boy... we pretty much stopped talking after the last time we had sex, he would text me every now and then, mostly looking to hookup. but now with the new semester in full swing he's started texting me all the time and trying to hook up again..i mean REALLY trying lol

Like I said we really hit it off and I enjoy his company as well as his roommates but I want nothing more than to be his friend! How do I freindzone a guy that's simply trying to be a fu*k buddy?
How to friendzone a hookup?
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