I've shared my experience/situation on many threads, and will share again here (in a briefer summary).
I've hooked up with two NFL players: One in summer 2018 and one ongoing since October 2021 (we see each other every 3-4 weeks). I had to sign NDAs with both guys so I can't reveal who they are, and wouldn't anyway.
They both stated that I'm the first guy they've been with. I believe it 100% for the player from 2018; I'm not so sure about the one I fool around with now. He has a frat boy mentality, so even if he's not messing around with guys now, I have a strong feeling he probably did back in high school or college during a "joking" or "experimenting" phase.
In both cases, they came on to me. I met the first guy at a house party a NBA player was hosting at his house (a close female friend was hooking up with and invited me as her +1). We talked for a while but he had to leave for training early the next morning, so he asked if I'd be free/interested to meet him for lunch after practice. Fast forward, we had lunch then spent a couple hours on the beach which is when I realized he was sexually interested in me but probably scared to make the first move, so I made a cheesy comment about his happy trail, and that got the engine moving. He invited me back to his place, I had to the sign the NDA, and I not only sucked and rimmed him (which he said was his first ever), but we had full-blown sex.
The second player I actually DMed on Instagram to ask about the brand shoes he was wearing in one of his stories, and to my surprise, he responded. We messaged back and forth for about 30 mins, then he went cold and I thought that was that. Lo and behold, he hits me up out of the blue a couple weeks later and says he'll be in my city and asks if I'd like tickets to the game ("hell yeah"). We arranged to have dinner after the game, and he started out in a sour mood because his team lost, but he livened up. Fast forward, he makes a comment about me being "cool and hot as fuck" and why I'm not married (I'm in my 30s), and then says he's gonna find someone for me. "What do you want, a girl or a guy?" I told him I'm down for whoever he finds for me, as long as they're hot and have their shit together. We laughed, he paid the bill, and then as soon as we're outside, he hit me with "So if you're into guys, am I your type?" And here we are, 6 months later...