Yes

Against your better judgment you grab the dildo you created through merging your original dick with your sisters most outrageous toy resulting in the monster dick you impaled your sisters stolen body on. It takes both your hands to get a proper grip on it due to its girth and heft.

Lifting it up you see the base has a magical glow where you used the divide function to remove it from your original body.

Resolving yourself to this act, you slowly lower the base onto the crotch of your sisters body which you now inhabit just above your pussy. As the base makes contact with your skin there is a jolt of pleasure as it attaches to your body causing you to moan in pleasure.

You suddenly feel light headed as all the blood in your body rushes to your new appendage which grows erect almost reaching your mouth. You black out due to the lack of blood.