That vibration runs all the way down his cock, and Rumlow moans to feel it. Keeps quiet, at least, only enough that she can hear him. Hot that she chokes on him too, pushes herself to take all that dick, even knowing she can't. Makes him wanna hold her down, maybe guide her head by those cute little pigtails. As tempting as it is to hear her gag, he's not gonna run the risk of her bashing her head on the desk or something when she tries to violently pull back to keep from heaving. That's not so sexy.

Watching her hand wrap around his dick and stroke him off while she quietly pants, though? Definitely. A thick pearl of precome beads at the slit, but it soon disappears as she sucks him down again, focused on the head. Rumlow groans, leans forward just a little more. It's good. He swallows, glances towards the door. Someone's walking down the hall, but they don't stop. His hand drops down, fingers gathering in Kenzi's hair. He doesn't pull, but he's tempted.

"Doin' so good, sweetheart," he murmurs, "Daddy's so proud, you're taking so much of my dick, just makes Daddy want to bend you over the desk and fuck you right in front of everyone..."