SPH is a type of play where the focus is on demeaning male sexuality, symbolized by the penis. It's important to note that it doesn't necessarily require the penis to be small. However, on Pixiv, it's often associated with being small and uncircumcised.
Frequently, SPH is linked with NTR (cuckolding), involving situations where individuals are mocked or humiliated for having a smaller penis compared to someone else, such as a rival. Additionally, this play may occur when the penis has been diminished in size through extended wear of a chastity belt or feminization training.
Variations can range from fun and playful to aggressive and mean.
Look at that group of girls laughing and pointing at his tiny dick! SPH is making his little wiener as hard as a rock!
One person (usually female) mocks the small penis that they have just encountered, and for the pleasure of the aroused will encourage him to orgasm while continuing to poke fun.
