pls help me find this manhwa

can someone pls help a gooner out i read this manhwa a while ago and forgot the name but i like vividly remember the plot... it's straight and its about this guy and this girl who are neighbors and the guy is a fuckboy and some sequence of events happen and the guy turns into a dildo or like a vibrator idk but he genuinely becomes like a pink dildo and it's really hot if you ignore the fact that he's not human for a good chunk of it anyway if anyone knows it and is feeling generous pls reply to this with the name tysm