Seated guard, cross collar grip
Technical Get-Up to Mount
The same entry as the get-up to the back. Once they're on their hands and knees with your seatbelt on, roll them over and come up sitting in mount.
Step by step
Grab the cross collar
Sitting in front of your kneeling partner, reach across and grab their opposite collar, deep by the neck.
Post and get up
Post your free hand behind you, lift your hips and swing your leg back under you to come up, keeping the collar grip.
Pull them through
Pull the collar down and past you as you rise, so they end on their hands and knees.
Take the seatbelt
Get onto their back, chest on them, one arm over the shoulder and one under the armpit.
Roll them over
Roll to your side and pull them over with you, so they land on their back.
Come up to mount
Turn into them as they land, get your knees under you and swing a leg over to sit in mount.