At the Gay Sex Positions Guide, we define group gay sex positions by the activities—anal intercourse, blowjobs, or rimjobs—performed by three participants, which we'll refer to as participants A, B, and C.
In the anal train position, participant A fucks particpant B who fucks participant C.
| Position \ Participant | A → | B → | C |
|---|---|---|---|
| Train Oral (a.k.a. Blow Train) |
blows B → | blows C → | ◉ |
| blows B → | blows C → | blows D → ⋯ → ◉ | |
| Cadeia Oral (a.k.a. Blow Chain) |
blows B → | blows C → | blows A ↩ |
| blows B → | blows C → | blows D → ⋯ → blows A ↩ | |
| Trem Blow Rim | blows B → | rims C → | ◉ |
| Blow Rim Chain | blows or rims B → | blows or rims C → | blows or rims A ↩ |
| blows or rims B → | blows or rims C → | blows or rims D → ⋯ → blows or rims A ↩ | |
| Perfecta (a.k.a. Blow Fuck Train) |
blows B → | fucks C → | ◉ |
| Golpe Train Rim | rims B → | blows C → | ◉ |
| Rim Train | rims B → | rims C → | ◉ |
| rims B → | rims C → | rims D → ⋯ → ◉ | |
| Rim Cadeia | rims B → | rims C → | rims A ↩ |
| rims B → | rims C → | rims D → ⋯ → rims A↩ | |
| Rim trem porra | rims B → | fucks C → | ◉ |
| Espeto assado (a.k.a. Fuck Blow Train) |
fucks B → | blows C → | ◉ |
| Trem da borda da foda | fucks B → | rims C → | ◉ |
| Train Anal (a.k.a. Fuck Train) |
fucks B → | fucks C → | ◉ |
| fucks B → | fucks C → | fucks D → ⋯ → ◉ | |
| Fuck Chain (not seen to date) |
fucks B → | fucks C → | fucks A ↩ |
| fucks B → | fucks C → | fucks D → ⋯ → fucks A↩ |