I swallowed another mans cum for the first time

I met a guy on a spanking website and went to his place. He stripped me down and put me over his knee. He spanked me hard. I don't get spanked too often, so it really hurt. My ass was marked up and cut a little. He then commanded me to suck his cock to completion. I told him I had never done that before, but he said he would hold me down and paddle me if I didn't, so I got between his legs and started sucking. He made me tounge his asshole too. He had me stand up and suck him while he grabbed and squeezed my balls. He pushed my head down onto it. He wasn't too big, about 6", so it wasn't too difficult to get it all in my mouth. He then started thrusting his hips and I knew he was close. He let out a moan and jizzed in my mouth. He told me to swallow it. I wasn't going to contest because I knew what would happen, so I swallowed. It wasn't a huge load, thank God. He then told me to get dressed and get the hell out of there. I was rock hard and couldn't wait to get home to jerk off. I really enjoyed being a cocksucker and can't wait to do it again.