What has circumcision to do with sexual pleasure? Please do explain. I'm circumcised and I have no loss of sensation from not having foreskin. I also don't have a moist area for bacteria to multiply
There are people that were circumcized after becoming sexually active who can (and do) report exactly that.
Separately, we can simply ask people that have foreskins to describe the sensations they feel from that body part.
The only part that we can't say with confidence is how the neutral pathways develop (i.e. how we perceive the sensations) when it's the only way we've ever experienced.