In Winter in my Room — Winter Sex

To show Dickinson's logic of word, and because this subject is sensitive (a cold sex), many comments are provided for this poem, or you can read by instinct.

Summary:

1-9 She told a man that they could caress but go no further.
10-21 After some trifles, the man erected and she was aroused.
22-31 The man entered her, but she sensed no excitement.
32-39 The man ejaculated, the same time she faked her orgasm. She left him.

In Winter in my Room 1
I came upon a Worm-
Pink, lank and warm-
But as he was a worm
And worms presume 5
Not quite with him at home-
Secured him by a string
To something neighboring
And went along.

A Trifle afterward 10
A thing occurred
I'd not believe it if I heard
But state with creeping blood-
A snake with mottles rare 14
Surveyed my chamber floor
In feature as the worm before
But ringed with power-
The very string with which 18
I tied him-too
When he was mean and new
That string was there-

I shrank-"How fair you are"! 22
Propitiation's claw-
"Afraid," he hissed
"Of me"?
"No cordiality"-26
He fathomed me-
Then to a Rhythm Slim
Secreted in his Form
As Patterns swim
Projected him.

That time I flew 32
Both eyes his way
Lest he pursue
Nor ever ceased to run
Till in a distant Town 36
Towns on from mine
I set me down
This was a dream.
(F.1742/J.1670)
[1] my Room:: the scene location of this poem. Winter:: a hint on something cold for her, the result of the whole event.
[2] Worm:: a human being likened to a worm or reptile as an object of contempt, scorn, or pity (OED 10a).
[3] Pink:: a) exquisite; smart, 'swell' (OED 3); b) the most perfect condition or degree of something (2b). lank:: a) a lanky or lean person (OED B.n.2); b) flabby, hollow (OED 1); with loose muscles. warm:: a) ardent; b) prone to sexual desire; amorous (OED 13). Pink, lank and warm:: a smart, lean and passionate man; item b is used in line 16.
[4] worm:: a serpent, snake, dragon (OED 1).
[5] presume:: to intrude, venture.
[6] at home:: at ease, relaxed.
[7] Secured him by a string:: asked the man not to cross the line.
[8] something neighboring:: by doing something close and friendly.
[9] went along:: they started to caress.
[10] Trifle:: insignificant details of their caressing.
[11] A thing occurred:: the snake in line 14, that penis appeared.
[12] if I heard:: she would not believe this scene if others had told her, but she saw it now.
[13] creeping blood:: a hint on the slow increasing of blood into penis.
[14] snake:: various things resembling a snake in some respect (OED 4); alluding the penis. mottles rare:: few and separated (rare) veins on the penis.
[15] chamber:: an enclosed space in the body of an animal or plant (OED 8); alluding the pubic region. floor:: the base of any cavity.
[16] In feature as the worm before:: the "Pink, lank and warm" in line 3, item b.
[17] ringed with power:: the man embraced her with power.
[18] The very string:: the powerful string that tied him not to have sex, now tied him to her. Her restriction on caressing only attracted him more.
[19] I tied him too:: she tightly embraced him too.
[20] new:: morally or spiritually changed (OED 4d). he was mean and new:: he was vicious now with unusual behaviors, which was new to her.
[21] string:: a ligament, tendon, nerve; an elongated muscle or muscular fibre (OED 2a); the suspensory ligament of penis. That string was there:: that string she wished to secure him was now the string suspending his penis.
[22] I shrank:: she contracted (her vagina). "How fair you are":: said the man after she shrank her vagina.
[23] Propitiation's claw:: the seizing (claw) of vagina that appeased (propitiated) the penis.
[24-25] "Afraid," "Of me":: boasted the man.
[26] cordiality:: the state of invigorating the heart and stimulating the circulation (OED cordial B.n. 1), when considering sex as a beverage. "No cordiality":: "No excitement," she said.
[27] fathom:: to get to the bottom of, dive into, penetrate (OED 4b).
[28] Slim:: crafty, wily, artful (OED 3). Rhythm Slim:: repeated artful movements.
[29-30] Form, Patterns swim:: different patterns in the love-making.
[31] Projected him:: thrust his body at her; made him ejaculate.
[32] That time I flew:: she flew high with a fake orgasm that time he ejaculated.
[33] Both eyes his way:: stared at the man soberly, a hint on her fake orgasm.
[34] pursue:: to seek for more, to importune.
[35] Nor, ceased to run:: she started to hide herself.
[36] distant:: frigid, remote. Town:: the inhabitants of a town, the townspeople (OED 5).
[37] Towns on from mine:: further townspeople away from her own, her family members.
[38] set me down:: to settle herself; to set oneself down, to begin to devote oneself to (OED 143j). How to settle or what to devote is debatable.
[39] dream:: something wonderful but hard to reach. She tried to set herself down but that was nearly impossible like a dream.

The suspensory ligament of the penis consists of a triangular process of fibrous tissue, which is attached above, by a pointed portion, to the anterior and lower part of the symphysis pubis. ─ Demonstrations of Anatomy (1840)