Important comment insanely fun in concept DO NOT TRY IRL, tickling can be fun but also restricts air flow by a lot if this was done in real life as close as possibly to the video the combined restrictions on her airflow would be enough to potentially KILL her, the listed restrictions to breathing are the laughter "preventing even and constant resperation", the neck strap "restriction of wind pipe", the stomach strap "restriction of diaphram", and the gag obviously. Combined with the sexual activity and the increased oxygen requirements that come with it this SHOULD NOT be attempted in real life.
I apologize if I offend but I have heard of far too many people dying during sex.