No

The spell doesn't work. The plant's tendrils wrap speedily around Harry and Ron's legs and push them to the ground. Hermione struggles to react as the tendrils push past her virgin ass inside her, she screams out.

The plant expands and starts wrapping up the boys in similar bondage, slicing through their clothes and rendering them completely naked. Both of their dicks are still hard from their perverted search of panties in the dorm room and it doesn't take long before the tendrils have wrapped around their cocks and start stroking the boys to complete bliss.