My BF and I have been together for 3 years. Just this weekend was the very first time he came inside of me. He's always avoided it for some reason but I've been telling him it's ok and finally he did it. My question, because I've never done it before, is what happens to the cum? What should I do after sex to clean up? Are there any after effects? BTW, we're both clean and healthy and monogamous.