Tony being entirely unprepared and fucking keening when Steve adds a finger in with his tongue and massages his prostate with a consistent, maddening, gentle pressure

blossomsinthemist:

YES.  Yessssss, omg.  Once Tony’s relaxed, open enough, Steve slips his finger into that tight heat, very wet now, sloppy and dripping from Steve’s saliva, and Tony didn’t expect it at all, and just makes this loud keening noise that almost embarrasses him, except for the punched out noise of desire it makes Steve make, the way Steve jerks under him and his fingers clench in Tony’s thighs and he licks him with even more determination, even as he keeps up that constant, gentle, teasing pressure on Tony’s prostate, just firm enough to ramp Tony up, because he knows exactly how firm Tony needs that pressure to get going, never stopping the movements of his tongue.