I would let her force to Facesit in reverse her full BBW weigh. Nakedly on my nostrol pressd hard aganst her asshole. Eat very gassy food while facesitting me. Tape my mouth. Giving me air making sure her asshole is touching my nostrol and I can smell her very dirty, stinky, sweaty asshole t hat she didnt wash for the whole day when she didn't farting yet. Then she would release the longest, strongest, thickest, stinkest farts ever in my nostrol. And hope that would go on for hours. Either smothering me with her extream weight or smelling her dirty asshole. On top of that having my head inside her pantyhouse and holding my head with her feet, and my hands with her strong legs. That way I cannot move my head or arm. And have a another BBW hot granny on my stomach and on top of my cock to pin my body down. They would take turns farting up my nostrol and cutting my air in compleat darkness while having my cock deep in their ass. After the session we would snuggle I would be between them having my face deep in their big brest but allow me to breath throught my mouth smelling nice sexy sent. Having my hands pinned down by their weight. And end the night sleep with them.
That would be the best night ever