House of Sissify on Philosophical Imperatives

You will need to bear down to open your Sphincter when your Mistress wants you to welcome some object into your body, a butt-plug, or dildo, or if she's especially pleased or disturbed by you perhaps a real male cock.

Your Rectum and your Anus together make up your "sissy cunt", a source of great pleasure for yourself and others. It is essential to your identity as a sissy girl. First of all, you must learn to repect it.