I Cup: The Dominant Genome of a Busty Family Line. A story about I-cup breasts, chest service, aquarium visits, chest-focused activities, and cosplay encounters.

We encourage a friendly and respectful discussion environment.

• Post content that benefits others. Describe facts rather than opinions, and certainly not personal evaluations.
• Post comments based on the topic of the content. If you wish to refute something, please address the main points of the topic, not tangential details.
• If you find any comments that violate the rules, please do not hesitate to click "report" instead of replying.
• If your words are intended to hurt others, or if you foresee wanting to delete them in the future, please do not post them.
• Posting URLs, political, religious, anti-humanity, reactionary, racially discriminatory, AI-generated, or similar content is prohibited.
• Based on the severity of the violation, administrators will issue temporary mutes, permanent mutes, or account bans.