When a male/female stands up straight and tilts their neck back, allowing their partner to sit on face whilst making love. The male/female on bottom may stick tongue up ass and or vagina, as well suck on balls, making for a pleasurable experience for the one on top. In addition, the one on bottom may also hold the thighs of their partner, relieving some stress on their neck if they are not strong enough to hold them without the support.
"We tried bottle-necking last night, now my neck is super sore!"
"Damn! I gotta do that too!"
2👍 2👎