This character has sex in the spit-roast position. Apply this trait to the partners on the "ends", and apply i1703 to the partner in the middle.
For this position, one partner (typically female) performs oral sex on another partner (typically male) while being penetrated in the doggy position by a third partner (typically male).
Do not confuse this with the reverse spitroast position. For the spitroast, the partner in the middle is penetrated, while for the reverse spitroast, the partner in the middle is penetrating one of the other partners.
Example 2 - Gender-inverted example.