Stepson's Endurance Training

Nick Strokes just started dating and he's coming way too fast, since he's still a virgin. He tells his stepmom Natasha Nice, because he trusts her. Natasha tells him 'endurance training' is the fix, basically edging himself before he blows. Nick figures he'll bust instantly anyway, but Natasha volunteers to walk him through it hands-on. He's nervous, but she talks him into it with that sly smile. She pulls out his cock and starts slow, stroking him just enough to keep him hard without pushing him over. She stops every time he gets that twitch, letting him breathe until the urge backs off. After a few rounds of that, she slides down and takes him in her mouth, keeping the same teasing rhythm. Every time his balls start to tighten she pulls off with a smirk, waiting him out. When he's finally holding steady, Natasha climbs on top. She sinks down on him and rides with the same stop-start control, grinding until he's right on the edge, then freezing until he calms down. She keeps that up until he's lasted through the full thing, proving he can actually last when it counts.