The ultimate substitution for a hard dick is definitely a strapon, and it can be used on girls or guys. There are couples that love fucking each other with a strapon, and you can see lots of dudes bending over to be penetrated by their female partners aka pegging. But in most cases, a strapon is being used by two babes usually lesbians who don't need a man to be satisfied. These hot girls are cock hungry, but since there is no man around, one of them wears a strapon, and fucks all holes of the other. The best part is that they often change roles mid-sex, and now the other one is being fucked. Strapons can be small, and they can be massive; it all depends on the preferences and capabilities of individuals using them. Models who love teasing with their girlfriends, often use them, and it makes them both cum hard.