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Eridell's ABO Primer and Physiology Guide

Chapter Text

Are relationships between an Alpha and a Beta different from an Alpha and Omega?
Biologically, yes. The imperative to knot that’s triggered by heat pheromones is only reproduced by bonding over the span of years with the same Beta, so Alpha/Beta relationships tend to take much longer to produce children. That’s not to say it’s impossible: a bond-triggered rut increases sperm count in an Alpha by between forty to two-hundred percent, making the chance of conception much higher when an Alpha can successfully achieve a knot.

Are bonds permanent?
No. Regardless of dynamic, a bond fades when the nerves and pheromone pockets at the nape of the neck recover. This takes anywhere from three to seven days, depending on the person. Repeated bonds have been known to slightly alter a person’s scent, but they are not permanent and are not the same kind of attachment that comes from mating.

Can Omega males carry children?
Yes. However, since their physiology does not facilitate natural childbirth they are required to deliver by Cesarian section.

Can Alphas carry children?
No. Regardless of gender, Alphas do not possess the reproductive parts required for conception.

What is a knot?
A knot is an Alpha-exclusive characteristic that occurs during a bond-induced rut. When they near orgasm the capillaries and underlying tissue at the base of the penis swells, “locking” them into place for the duration of their orgasm. Knots last between ten and thirty minutes, during which time the Alpha will release seed anywhere between four to eight times before the knot deflates.

What is a heat?
A heat is an Omega-exclusive state of heightened hormones that runs on a regular cycle. During a heat an Omega’s body readies itself for mating by increasing pheromone production, producing slick, and increasing fertility through specialized hormones.