Best waifu

A girl with long dark hair and a mischievous grin lies on a sofa, then sits up and makes clawing motions with her hands while saying she can make certain poses, as a boy with glasses looks on in distress. The scene shifts to the girl playfully tickling the boy, who is lying on his back, as she sits on his chest with a wide, excited smile, while he struggles and sweats, and the girl says "You can tickle me." The setting is a simple indoor room with a sofa.