I [37 m] have been exploring bi feelings. Started chatting with a man and ended up eating my own cum. (sub/Dom)

I got curious, started chatting and last night I went full submissive via chat

I [37 straight? M] fully went full sub to a man on the internet

Yesterday I got into a chat conversation with a guy on a nsfw wife sharing subreddit that turned into something wild.

Some back story. I'm a very traditional steriotypic straight blue collar white dude. Been in a fantastic relationship for 15 years. But I'm much more open to kinks than my wife and have been exploring. I'm curious about being with a man. Haven't gone through with anything but chatting (sexting I suppose).

The conversation with this individual started casual enough. But then he started calling me 'pet' and, playing along asked what he wanted to be called. He said I could call him 'sir or master'. I was horny and enjoying the fantasy so I went along with it as the sexting progressed.

Earlier in the conversation he said that he wanted me to be nude. As things progressed I sent a picture of how hard I was and in the picture I was very clearly not nude. This introduced a 'bad pet' and 'punishment' scene into the conversation. He gave me three punishment options to make up for breaking the nudity rule. Spankings with a wooden spoon with Pic of my welted, red ass. Pics of me in my wife's panties. Or tieing a string around my cock and balls tight enough to prevent cumming and sending Pic proof.

I chose the string around my junk as my punishment and sent pics as evidence. The other two options seemed like easy vanilla options to me. Sexting continues with graphic discriptions of me giving him head and being face fucked, fingered prior to anal and finally penetration. I'm legitimately enjoying it and getting more and more turned on and desperate to cum.

More pics are exchanged and he tells me to beg to cum. I do, begging and whining like one does when in that scenario. He commands me to hump my pillow and cover it in my precum. I do, and provide evedence. After more begging and edging I'm commanded to untie the string around my cock. I comply and provide evidence. I'm told to stroke and not to cum while he tells me what he wants me to do. I'm to cum on myself take a Pic, scoop the cum off myself with pics, and feed it to myself with Pic evidence. Finally I'm told to swallow my own load and show evidence.

I did all of it.

I have been 100% straight sexually (irl) my whole life and within two weeks of chatting with strangers about being bicurious and wanting to maybe try something irl with a man I submitted to a man and swallowed my own cum.

It was honestly one of the hottest things I've done. I came SO hard at the end. And I expected the shame to come with the post nut clarity but it didn't. And now after sleeping on it and spending time with it in my brain I still get achingly hard when I go back and read the conversation.

I'm shellshocked. I ache for more, but am scared at the same time. And I'm not sure if I'm typing this to ask questions or advice or what it's for other than getting it off my chest. I feel the need to tell SOMEONE and strangers on the internet seem like my best bet I guess?

Thanks for your time. Any comments, messages questions, I guess? I'll answer what I can..

Tldr: straight masculine man submits to domme. Sexts about gay sex acts and sends photos. And is commanded to eat cum.