Use this skirt friendly ground sit animation with an AO. Sitting down is animated, getting up is smooth. Hand, foot, and head "fidget" while sitting. Great with IntelliSkirt enabled clothing (but IntelliSkirt is not required). The images show the ground sit animation and IntelliSkirt script from NU Gear, and clothing from AnnaH Couture.
NU Gear - Southern Paradise (239, 15, 22) - animation, IntelliSkirt
NU Gear - JSP, Kleene Corp (102, 103, 22) - animation, IntelliSkirt
NU Gear - Touchwood Mall (142, 246, 21) - IntelliSkirt
AnnaH Couture, Sedna (195, 156, 27) - clothing