My straight friend let me suck his dick and doesn't want it brought up

Hey so the other night, my straight friend of 7 months asked me to suck his dick because he was fucked up on xanax and who know what else. He told me not to bring it up.So I drove over to his house we hung for a bit then he said he had to watch straight porn and we got busy no kissing no nothing just me sucking his dick.He told me it was a great blow job but it made him uncomfortable with a guy after he finished. Then we both went to sleep.Mind you now, I've slept in the bed with him over 10 times since being friends over the last 7 months. Nothing sexual ever happens or touching.I knew in my head I'd never mention it, unless he decides to bring it up.Well two days later, I call him cause I need help with fixing something in my car. He mentions to me at the end of the phone call that don't ever bring up what happened a couple nights ago. I replied and said what are you talking about? Then he said okay. That was it. I have no one to talk too about it. Any advice on here? First time using Reddit.All I know is when we woke up the next day, things were normal to me. He was on his side the bed and I was too. As if like any other sleepover. We're both in our 20's so if anyone can relate advice? Thanks