This character has sex in the spit-roast position. Apply this trait to the partner in the middle, and apply i1499 to the partners on the "ends".
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.