Breeding Rate & Expected Delivery — erotic RP litter calculator
♀️ Female Characteristics
Female Traits
Hover a trait for details.
♂️ Partners
⚙ Presets & Options
Sex Acts & Impregnation
Primary and secondary are averaged (60/40).
Global bonus to chance and litter. Stronger if an orc, werewolf, or minotaur is present. Separate from individual creampie depth.
Tags override related sliders and color the blurb.
Human Average: typical human male (~18 cm × 4.5 cm), standard concentration and volume, one creampie.
🎲 Encounter Result
Ready
Configure and roll
Modifier Guide
Base chance: 8% Age: peak +3 (21–26), declining after 32 Body type: Lithe −4 / Athletic −1 / Curvy +3 / Very Curvy +6 Ovulating: +12 Arousal & Orgasms: scales with values (roughly −4 to +8) Affection: scales around 5 (roughly −2 to +2) Position: Full Breeding Press +5, Mating Press +4, Doggy +2.5 … Oral −8 Fertility drugs / Aphrodisiac: +4 to +8 Birth Control: −18 Female traits: Easy Breeder +4, Breeding Stock +5, Heat Cycles +6 (if ovulating), etc. Knotting: +2.5 to +6 (stronger with orc/werewolf/minotaur) Partner potency: size, volume, concentration, tip type, creampie depth, and count all add up (capped) Observers: +1.5 per level Final chance is soft-capped so it rarely exceeds ~90%.
Detailed Breakdown
♀️ Character Profile
⚠ Fictional RP mechanic for artistic purposes only. Does not model real-world fertility or pregnancy risk.
Inspired by the BLACKR Pregnancy Calculator.
Changelog
v1.2
Extended cup sizes beyond F (up to J+); pregnancy growth can reach higher cups.
Cock size presets (Small / Average / Large / Huge).
Oral finish and zero creampies now heavily reduce pregnancy chance.
Centimeter / inches toggle for length and diameter.
Cervical penetration option for creampie depth.
Bug fixes and graphical improvements.
v1.1
Purebred offspring option (per partner) — seed can sire pure orcs, goblins, etc.
Adjusted litter size — 1–2 babies are now the norm for humans; multiples more likely with goblins, orcs, and tentacle monsters.
Detailed Breakdown updates live and color-codes positive (green) and negative (red) modifiers.