The Challenge Sex position is a rear-entry sex position that provides a challenge for the receiver and a very sexy view for the giver.
To get into this position, the receiver should hop up on a short stool or chair (be sure it's sturdy!). The receiver can then penetrate from behind. This position can be used for anal or vaginal sex. Both partners can adjust hip angles to provide better access and varied penetration. Add some toys from Lora DiCarlo to make it even more stimulating!