Slapped Slut

After forcing the dildo further and further into my mouth in an effort to perfect my deep throat technique He made me re-apply lipstick and untied my hands but gave me instruction NOT to push him away otherwise I would suffer further whipping.  He could have left them tied and forced His cock down my throat but He likes the idea of my mind supressing the need to stop Him from making me gag, it is very clever, the phsycological games. Being free to make Him stop but with the fear of reprisal if I do and the need to please him at all times, all these things flying round my mind when really I should be trying to get the technique just right.