Particular case when Shimaidon relationship happens with twins.
| Name | Similarity |
|---|---|
| Twin Sister Role | 38% |
| Older Sister Role | 21% |
| Younger Sister Role | 21% |
| Twin Blowjob Engages in (Sexual) | 18% |
| Deredere Personality | 18% |
| Twin Tails Hair | 17% |
| Incest Engages in (Sexual) | 16% |
| Hairpin Clothes | 16% |
| Group Sex of One Male and Several Females Engages in (Sexual) | 15% |
| Sitting Sex Subject of (Sexual) | 15% |
| Cunnilingus Subject of (Sexual) | 15% |
| Sixty-nine Engages in (Sexual) | 15% |
| Bathroom Sex Engages in (Sexual) | 14% |
| Boobjob Engages in (Sexual) | 14% |
| Ahoge Hair | 14% |
| Handjob Engages in (Sexual) | 14% |
| Virgin Sex Engages in (Sexual) | 14% |
| Knee-high Socks Clothes | 14% |
| Cowgirl Subject of (Sexual) | 14% |
| Spoons Subject of (Sexual) | 14% |