Part I: www.youtube.com/watch
Both male & female lions engage in homosexuality. Male lions pair-bond for a number of days & initiate homosexual activity with affectionate nuzzling & caressing, leading to sex
In contrast to lions all hyenas are heterosexual with dominant female & submissive male. Hyenas females are confused with males because they have giant 7-inch clitoris.
Females frogs make their mate choices based on the males depth of croaking. This has led to sexual dimorphism, with females being larger than males.
Horny male dolphins can target human swimmers. Demi Moore had a close encounter of the finny kind. Females dolphins would use they snouts as dildos on other females.
Male seagulls and ducks have corkscrew shaped penises. Birds balancing act can often take several attempts before resulting in successful copulation.
Wild and Domestic Pigs orgasms lasts up to 30 minutes, but usually shorter.
Mole rats colony has only one dominant breeding female and several submissive breeding males.
Female red and regular pandas only get excited sexually for a 24 to 48 hour window. It happens once a year at some point between February and May.
Ocelots tend to breed even less than pandas - only every other year.
If a female monkey interested in a male, she'll put her bottom right up in his face. When a male wants sex, he shakes a tree branch or engages in caressing and foreplay.