There's two side of this, either very lewd games(ex: VNs) that needs one hand or no hand at all to fap alone or good porn games(ex: LonaRPG) that requires both to lock tf in. Everything in between is disgusting imo.
Deepens on the circumstances, if we're talking about a VN I usually just slap a unlocker on or L-Ctrl the whole game to get all the gallery, other time I judge ones writing like reading Shakespeare's work. Recommend strike a balance between the two base on one's time' resources and abilities.