I think he just meant "I won't bone you" xD I mean, he kept his word if that were the case. He doesn't want to break Nakyum with his dick rendering him bedridden for another week lol. At least not yet.
I wouldn't say that giving someone a blowjob when seeing him erect is really laying a hand on him ^^ I mean it definitely is not traumatic, especially when you start to feel trembling and burning insides for certain somebody (￣∇￣")
I bet y’all are so popular at parties :^)
Seungho: “I won’t lay a hand on you.”
Also Seungho literally a minute later: *lays both hands, both feet, both pecs, and both heads on him*