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The female clusters may also contain a few males. In the present study, I provide confirmation of male-male genital licking in wild, free-living, Bonin flying foxes P. However, it is difficult to discriminate between male-male genital licking and basic social contact through allogrooming.

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Such same-sex fellatio is considered non-reproductive sexual behavior [ 2 ]. Homosexual behavior or same-sex sexual behavior is defined as courtship, mounting and genital contact and stimulation between same-sex individuals [ 8 ], and has been documented in a wide variety of animal taxa [ 9 ].

As such, male-male fellatio can be considered as homosexual behavior, two functional explanations could account for this behavior; the social bonding and the social tension regulation hypotheses suggested in a previous review. However, fellatio has been observed in other mammals between females and males, as well as same-sex individuals, both in captivity and in the wild [ 2 ].

Tibetan macaque Macaca thibetana , males living in crowded male groups engaged in penis sucking of other males, which functioned as greeting and in reducing the tension between two males [ 3 ]. A recent focus of interest has been on the functional significance of genital licking fellatio and cunnilingus in relation to sexual selection in Pteropodid bats.

Juvenile male bonobos, Pan panicus , frequently fellate other juvenile males in the context of play [ 4 ]. However, the occurrence of same-sex pairing and individual preferences for same-sex individuals has been maintained in populations [ 9 ].

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45, gay oral sex capitulation FREE videos found on XVIDEOS for this search. These two studies suggest that oral sex in Pteropodid bats prolongs the duration of copulation and does so by either increasing fertilization success [ 6 ] or improving the sperm competition of the males performing cunnilingus [ 7 ].

In the present paper, a form of fellatio in wild Bonin flying foxes, Pteropus pselaphonperformed between adult males has been reported. For example, homosexual behavior can serve as a form of social play, for the formation of social bonds, to diminish intrasexual conflict, for acquiring mating skills, to facilitate kin selection, for social tension regulation, and for alloparental care [ 289 ].

Unassociated with allogrooming, same-sex genital licking occurred among males in the all male clusters. Given that neither the simpler alternative that in all male groups such fellatio may represent misdirected sexual behavior, nor the two previously proposed functional hypotheses were supported by the data, I propose another functional hypothesis.

In spotted hyenas, Crocuta crocutaindividuals of both sexes lick or sniff a male's erect penis and a female's erect pseudo-penis as a greeting ceremony in relation to social rank [ 5 ]. Homosexual behavior influences the social dynamics of wild populations in some species, and might act as a selective pressure that shapes social, morphological, and behavioral evolution [ 9 ].

Many researchers have observed examples of homosexual behavior and provided various explanations for its adaptive significance. Homosexual fellatio in this species could help males solve inconsistent situations in the roost when there are conflicts between cooperative behavior for social thermoregulation and competition for mating.

Recently, the genital licking of Pteropodid bats has attracted great attention as this group of bats offers a new functional explanation for the behavior. Absolutely the best collection of Swallow gay sex videos in HD quality at one of the oldest felatio porn tubes XGayTube which was recently updated.

Sexual activities involving men who have sex with men (MSM), regardless of their sexual orientation, [1] can include oral sex, mutual masturbation, anal sex and frot. During the mating season, adult flying foxes roost in same-sex groups, forming ball-shaped clusters which provide warmth.

In addition, non-adaptive explanations have also been posited, such as mistaken identity, functionless by-product of adaptation, maladaptation [ 2gay9 ]. Evidence shows that sex between men is significantly underreported in surveys.

Official websites use. Homosexual behavior has received attention due to the apparent paradox against an assumed basic law of nature, that of Darwinian procreation, whereby individuals seek to maximize the number of offspring they produce and the frequency of their genes passed on to future generations [ 8 ].

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