AGEMIX-264 The mouth of a restrained girl is freely and rapidly pistoned, but this isn't fellatio (this part is important)

Bind both hands and torso with a belt for restraint. Then insert the hardened penis into the mouth, performing intense piston friction in the saliva-slicked oral cavity. Covered by tongue and lips, continuously experience the ultimate pleasure. In a restrained state, stimulation as desired increases both excitement and sensitivity. The smooth penile slide facilitated by saliva, stickier than lube, provides a godly sense of pleasure. The visually stimulating, debauched fellatio with elements of humiliation is overwhelming. Finally, ejaculate a large amount of raw semen into the mouth. Astonished by the act of beauty × humiliation × fellatio.