The knot of a penetrating penis is being forced into the penetrated orifice.

Since the future of motionless images is unknown, use this tag when:

• the knot has already partially entered the penetrated orifice
• stretched orifice
• stretched_anus
• stretched_pussy

post #805883 post #1102178

• the intention to knot is supported with clues
• grimace of effort
• clenched_teeth
• eyes_closed
• penetrator pushing into orifice
• receiver pushing against knot

post #813671

Not to be confused with:

• knotting - the knot should not have completely entered the penetrated orifice yet. Also, use knotting instead of imminent_knotting if the post in question depicts a before-and-after knotting sequence.

post #1353724

• knot_fucking - again, imminent_knotting is an inward motion, not an in-and-out repetition.
• knot_prodding - knot is against orifice but is not in the process of being inserted
• cum_inside with partial knotting - in this case, assume the knot is not going back in, and perhaps that orifice was never fully knotted in the first place.