My gf in high school gave me BJs like this. We both preferred it. Less work for her, felt better for me. She made an "OK" symbol with her finger and thumb around my dick, and that stopped me from going in too far. I'd go slow for a few seconds so she could kinda set how deep I could go, then I'd just start pumping. It was honestly the best. I just asked her to press with her tongue really hard. I'd usually be on my back, she would have her forehead up against my stomach so I'd be humping like straight up, and it pressed her tits against my balls which I liked for some reason lmao
I imagine this girl is proud of her sucking...she certainly should be! But I also imagine she is embarrassed to be filmed sucking the cock of a guy wearing a felon's locator anklet! I wonder how they met...