Tags
| Name ▲ | Type | Count |
| scizor | Species | 3 |
| scolipede | Species | 1 |
| scorbunny | Species | 1 |
| scrafty | Species | 1 |
| scraggy | Species | 2 |
| scyther | Species | 7 |
| season | General | 1 |
| seasons | General | 1 |
| seduction | General | 1 |
| serperior | Species | 2 |
| seviper | Species | 4 |
| sex | General | 34 |
| sex) | General | 1 |
| sexless | General | 233 |
| shadow | General | 1 |
| shaymin | Species | 2 |
| shiftry | Species | 1 |
| shinx | Species | 4 |
| shotgun | General | 1 |
| shower sex | General | 1 |
| simipour | Species | 1 |
| simisage | Species | 5 |
| size difference | General | 2 |
| skitty | Species | 8 |
| skuntank | Species | 1 |
| sleep | General | 1 |
| slit | General | 1 |
| sloppy kissing | General | 1 |
| slowking | Species | 1 |
| slowpoke | Species | 1 |
| smeargle | Species | 2 |
| sneasel | Species | 4 |
| sniffing | General | 1 |
| snivy | Species | 5 |
| snorlax | Species | 1 |
| snowballing | General | 1 |
| soft vore | General | 1 |
| solo | General | 1 |
| songfic 2010 | Category | 7 |
| songfic 2014 | Category | 1 |
| soulbond | General | 1 |
| spinarak | Species | 1 |
| spiritomb | Species | 2 |
| squirting | General | 1 |
| squirtle | Species | 1 |
| staraptor | Species | 1 |
| staravia | Species | 2 |
| starly | Species | 1 |
| stealth | General | 1 |
| steelix | Species | 1 |