Position number 246: The Sofa King Good move
Players: one dick, one mouth and eye contact
Genders: Any combination MF, FF, MM. Could be a domination scene with two women and a strap on...I've done this and it's hot.  
Objective: Just getting things heated up.
What you do: the person with the dick (or strap on) is the voyeur and major pleasure recipient. The one with the mouth proceeded to tease the groin area with hands and mouth avoiding the dick completely. This will increase blood flow and make he partner with the dick more aroused. Finger tips or nails now to gently touch the lower part of the genital region (typically in MF it would be the balls) NOW remember, eye contact the whole time.  
Now take the shaft into your hand and start licking the head.  
Now you must deep throat and gag. By gagging it makes your pussy, ass or  both to tighten up. That will make the mouth partner start to feel more arousal.  
Typically the more the mouth person deep throats the more they become aroused; thus making the dick person more aroused.

Bonus points on this move?  
1. Tears  out of the eyes from mouth person because of gagging.  
2. Mouth person masturbates.  
3. Mouth person maintains good eye contact.
4. Mouth person strokes and rubs balls, thighs and lower abdomen.  

Great post OP!
Sex positive is the way to be!
Samantha Sofa King Good

While getting an HJ in the front seat of a rollercoaster during initial climb. Once you approach completion as you approach the first drop. Release the load as you near 0g.  This is where you must ejaculate at force equal to or more than the force of gravity (9.81m/s) any thing less will result in a Ride of Shame causing a simultaneous fall with your semen or it will possibly hit someone in the seats behind you. A Dr. Rasa will be completed if all cars are clear of ejaculate. If you fail and get messy you must purchase the picture of your failure, this is why it is called the Ride of Shame.

The Quick Drawn

nuf said.

A Box Canyon is a small area, where there is only one way in or out and in the movies, the bad guys would always get trapped there.  So, the idea of the "Boxed Canyon", is to trap the Cum before it can escape.  There are two variations:  First, the base of the Cock and Balls are tied very tightly, so that when the guy ejaculates, the cum cannot escape and is forced back into the prostate and testicles.  Second:  The woman gives a hand job, and just as the man cums, she covers his cum-hole with her thumb, trapping the cum inside the dick.  NOTE:  This is not an activity for the weak at heart, as it can be very painful, and tormenting.  It is really for BDSM/CBT lovers.  

Just my two sick cents

This is done in the 69 position, me on the bottom with arms wrapped around her legs and a tight grip on her cheeks.  
Bring the lady to orgasm(s) to the point of sensory overload, increase tongue speed, and try to hold on for eight seconds!