๐ฆ Heavy Load
While many boys stretchgasm nowadays, Helmut got a weird ability to cum from heavy weight on his stomach, which he discovered when leaning over an edge of furniture, the pressure on his belly suddenly felt so good it gave him an intense hardon and he spent almost an hour fapping with the edge of a wooden chair buried in his stomach!
Since then, all his friends had to learn the hard way about this new obsession, because it was difficult to trample Helmut without getting an erection yourself, his abdomen was both toned and pliant, much like the rest of his body, the surface felt amazing on bare feet so both sides had incredible sensations.
Helmut had something like a goal to measure all of his friends in terms of weight and feet size. He also loved heavy boots, when someone had a new footwear, Helmut was already drooling (eye twitch at Wolfy who has a whole collection).
Too bad big guys like Danny were always too busy training numerous boys in various ways, so couldn't be expected to trample Helmut all day. Sometimes he would do it with barbells in the gym, sometimes in the bathtub, taking his favorite bucket and starting to fill it with water, but eventually the latter gave him an idea!
Truly, if Helmut weren't a hopeless fapster, he could be the next famous German scientist, after literally inventing the Perpetuum Mobile... "the more I cum, the more I cum!" ๐