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From Perverted Passions:
"I'm going to tongue-fuck you. Cum in my mouth, baby," the professor moaned as he stabbed his stiff tongue into the saturated slit. His long nose pressed against her anus; he sniffed the heady aroma of his wife's asshole. God damn! How many times had he dreamed of eating her sweet pussy out like this? He had been an idiot to believe that she would be shocked and repulsed. His love for her had held him in check.