These games contain sexual scenes between a blood-related brother and sister.
| Name | Similarity |
|---|---|
| Incest Engages in (Sexual) | 23% |
| Younger Sister Role | 20% |
| Brother Complex Personality | 18% |
| Full Sister Role | 18% |
| Full Brother Role | 17% |
| Older Brother Role | 15% |
| Older Sister Role | 14% |
| Twin Tails Hair | 14% |
| Cowgirl Subject of (Sexual) | 14% |
| Handjob Engages in (Sexual) | 13% |
| Boobjob Engages in (Sexual) | 13% |
| Missionary Subject of (Sexual) | 13% |
| Virgin Sex Engages in (Sexual) | 13% |
| Sitting Sex Subject of (Sexual) | 13% |
| Doggy Style Subject of (Sexual) | 13% |
| Standing Sex Subject of (Sexual) | 12% |
| Sixty-nine Engages in (Sexual) | 12% |
| Blowjob Engages in (Sexual) | 12% |
| Vaginal Fingering Subject of (Sexual) | 12% |
| Quickie Fix Subject of (Sexual) | 12% |