well... I'm still modifying the physics of these models, I already fixed the fact that Luka's nipples sometimes stretched a lot with long and fast movements, also that I'm already satisfied with how Luka's breasts bounce (for now) . I added more bounce to Miku's model to Miku's breasts but since I don't like small breasts to bounce so much, I think I'll reduce the bounce more. I made the motion. supposedly with rhythm (rhythmic motion) I think it's acceptable, I just wanted something simple to test the physics of the models' breasts and it ended up taking many hours to do it. If you are interested in the motion here you can download it... https://www.mediafire.com/file_premium/f96li155k497cd8/fukkiretaRitmicTPose.vmd/file only that the motion is made for models in T-pose (not for, arrow pose). anyway...