Can Anyone Else Feel It?

I have a iud so when me and my bf fuck I just let him finish inside me so it’s not messy because we like to do it right as we get in bed for the night but every time he cums I can feel it shoot inside me and its so hot. Like when he’s about to finish he starts breathing harder and goes faster and then it feels like my pussy is throbbing but it’s actually from him and he forces it in me and hold its for a few second then pulls out and forces it in my again and then again holds it. I guess when he holds it, that’s him when his cum is shooting out and he’s giving it to me but when we haven’t have had sex in a few days and he cums I can feel his liquid shoot up inside me and then I can feel it drip out a bit after he’s done with me and he lets me go. Does anyone else experience this?