Kneeling Lap Dance is as all purpose as flour: it is versatile enough to be part of most people's sexual repertoires and can be done almost everywhere, from the couch to the backseat! And for those who like to see themselves in action, it's a great one to do in front of the mirror!
Lovers position themselves similarly to Lap Dance, with the exception that the person on the bottom keeps their legs fairly close together so that the performer can comfortably straddle and ride them. The giver's hands are free to explore their lover's body and can easily reach in front to manually stimulate their companion.
The only foreseeable downsides are for the performer:
1. Their legs may tire quickly, depending on how much they sink into the seat cushion; correct this by placing firm pillows underneath the knees;
2. Penetration may be too deep, but can managed if the receiver hovers over their lover; and
3. Knee strain is also a possibility.