No Kindred or Ghould will part with their precious blood willingly, except to create a new fledgling, bind someone to their will, or restore their own servant. Even two Kindred in the throes of a passionate dalliance will fight to claim their prize or withhold their own vitae, which, to them, is a part of foreplay.
To engage in a feeding scene, engage in some verbal banter with a seductive context, using the key phrase "I hunger for your blood" .
If you hear a "bring it on", proceed to follow the standard rules for a Battle of the Beasts.
Escalating bids should happen with enticing purrs and pleasurable growls, rather than menacing hisses or aggressive posturing, as feeding is a game of seduction.
The winner of the confrontation will get to sink their fangs into the loser.
Portray this by putting your own hand on the body part the other party offers to you, leaning in and then touching your lips to the back of your own hand.
This will look great for everyone else and still give you and the other player some distance.
Unless you have specifically pre-calibrated a more intimate way of playing this with the other party, always stick to the baseline for acting this out!
Feeding causes intense sensations for both parties involved. It wreaks havocs on the senses like a strong drug trip and causes sensations of intense physical (though not necessarily sexual) pleasure.
Blood taken in a hostile manner, while providing sustenance, will taste bitter, establish no bonds and does not cloud the mind or causes pleasure in the victim.
Feeding on another character will decrease Hunger by one level. Note that while Kindred can feed on Ghouls and other Kindred, Ghouls can only feed on Kindred.
Only committing diablerie, draining someone to Final Death after a fight, will make Hunger go down all the way at once.